Two new B1 receptor antagonists, [Hyp3,Thi5,DTic7,Oic8]desArg9-BK and DArg[Hyp3,Thi5,DTic7,Oic8]desArg9-BK were tested in vitro on the rabbit jugular vein and the guinea pig ileum (preparations containing B2 receptors) and on the rabbit aorta (preparation containing B1 receptors) for pharmacological characterization. The results indicate that both compounds are antagonists on both B1 and B2 receptors, are competitive and discriminate between B2A and B2B receptor subtypes.
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| http://dx.doi.org/10.1016/0024-3205(92)90617-x | DOI Listing |
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